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Signs and symptoms of blepharitis usually are present in both eyes, affecting the upper and lower lids. They can appear at any age.

Symptoms (what you feel) of blepharitis include:

Itchy eyelids.

Abnormal or decreased oil secretions can result in mild tearing of the eyes.

Abnormal or decreased oil secretions can result in a feeling of dryness of the eyes.

Burning sensation in the eyes.

Gritty sensation in the eyes.

Sandy sensation in the eyes.

Foreign-body sensation (the feeling that something "may be in the eye").

Crusting of the eyelids.

Irritation.

Decreased comfort while wearing contact lenses.

Sensitivity to light.

Signs (observations that you make) of blepharitis include:

Red eyelid margins.

Swollen eyelids.

Increased shedding of skin cells near your eyelids, causing flaking of the skin around the eyes.

Matting of the lashes or eyes "glued together" in the morning.

Eyelids that appear greasy and crusted with scales that cling to the lashes.

Crusted eyelashes upon awakening.

Tears that are frothy or bubbly in nature.

Eyelashes that grow abnormally.

Loss of eyelashes.

Mild scarring of the eyelid margins.

Mild ulceration of the lid margins.

Dry and flaky patches of skin on the lid.

Dandruff of the lashes and eyebrows.

The symptoms and signs of blepharitis are often erroneously ascribed by the patient as being due to "recurrent conjunctivitis." They are also often mistakenly attributed to "dry eye" by patients due to the gritty sensation that may occur. Lubricating drops, however, do little to improve the condition.

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